From d3397269a4d5df6d0efd024a2f1ad7c2bb29b077 Mon Sep 17 00:00:00 2001
From: "Reed A. Cartwright" <cartwright@asu.edu>
Date: Wed, 2 Mar 2016 22:53:29 -0700
Subject: [PATCH] Use SHA256 to validate testdata. Add make_testdata_sum target
 to calculate SHA256 when the commitid changes.

---
 Modules/cmake_make_testdata_sum.cmake.in | 10 ++++++++++
 test/CMakeLists.txt                      | 17 +++++++++++++++--
 2 files changed, 25 insertions(+), 2 deletions(-)
 create mode 100644 Modules/cmake_make_testdata_sum.cmake.in

diff --git a/Modules/cmake_make_testdata_sum.cmake.in b/Modules/cmake_make_testdata_sum.cmake.in
new file mode 100644
index 00000000..6ecf1821
--- /dev/null
+++ b/Modules/cmake_make_testdata_sum.cmake.in
@@ -0,0 +1,10 @@
+set(tarfile  "@CMAKE_BINARY_DIR@/testdata.tar.gz")
+if(NOT EXISTS "${tarfile}")
+  message(STATUS "Downloading @TESTDATA_URL@ as ${tarfile}")
+  file(DOWNLOAD "@TESTDATA_URL@" "${tarfile}" SHOW_PROGRESS)
+  message("")
+endif()
+
+file(SHA256 ${tarfile} value)
+
+message("    ${value}  testdata.tar.gz")
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index ad1c0acf..26cfb403 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -2,7 +2,7 @@
 ###############################################################################
 # Testdata information
 SET(TESTDATA_COMMIT c4ff355)
-SET(TESTDATA_MD5 354f44afbcf148fbc653f4e1b5231f85)
+SET(TESTDATA_SHA256 b8c2f82f6b6662d1826e99722e378b2e6af25499eed553c4ec451633ce45935d)
 SET(TESTDATA_REPO denovogear/testdata)
 SET(TESTDATA_URL "https://api.github.com/repos/${TESTDATA_REPO}/tarball/${TESTDATA_COMMIT}")
 SET(TESTDATA_DIR "${CMAKE_BINARY_DIR}/testdata")
@@ -22,7 +22,7 @@ IF(NOT TESTDATA)
     DOWNLOAD_NAME testdata.tar.gz
     DOWNLOAD_DIR "${CMAKE_BINARY_DIR}"
     URL "${TESTDATA_URL}"
-    URL_MD5 "${TESTDATA_MD5}"
+    URL_HASH SHA256=${TESTDATA_SHA256}
   )
 ELSE()
   SET(TESTDATA_DIR "${TESTDATA}")
@@ -36,6 +36,19 @@ ELSE()
   )
 ENDIF()
 
+############################################################################
+# Create a make_testdata_sum target
+CONFIGURE_FILE(
+  "${CMAKE_SOURCE_DIR}/Modules/cmake_make_testdata_sum.cmake.in"
+  "${CMAKE_BINARY_DIR}/cmake_make_testdata_sum.cmake"
+  IMMEDIATE @ONLY)
+
+ADD_CUSTOM_TARGET(make_testdata_sum
+  "${CMAKE_COMMAND}" -P "${CMAKE_BINARY_DIR}/cmake_make_testdata_sum.cmake"
+  COMMENT "Calculating the checksum for testdata.tar.gz"
+)
+
+
 ################################################################################
 # Determine the location of the executables/scripts and any data sets required for full package testing
 # TODO: Search for packages and data installed outside of denovogear directory, move to ../modules/